Refuse chute



Dec. 1, i931. K s OLSON ET AL 1,834,171

REFUSE CHUTE Filed March 14, 1929 2 Sheets-Sheet 1 j/ 779s: y n: I h:

wwwa/M ZZgyZ-afzz @ya Dec. 1, 1931. s, QLSON ET AL 1,834,171

REFUSE. CHUTE Filed March 14, 1929' 2 Sheets-Sheet 2 Patented Dec. 1,1931

Y UNTEDSTAT.ES PATENT OFFICE) SAMUEL OLSON `AND ISAK ANDREW OLSEN, F. CHICAGO, ILLINOIS, ASSIGNO-RS'TO SAMUEL oLsoN LLINoIs e Confirmarrnc.,` 'or CHICAGO, ILLINOIS, A CoRPoMTIoNfoF REFUSE CHUTE Applicafioa'iednarch14,1929. serial No. 346,884. Y.

This invention relates to refuse vchutes of the general type Vused in .connection with various building structures, such `,as 4hospitals, hotels, apartments,f.oirice buildings,

i. 5 etc., wherein the chutelis designed for access at ene or more floor, levels;` andmorepparticularly vthe invention residesl in, the,V provision of an improved form ofclo'surel yfor the severalfloor level openings.l

A prinaryobject of this invention is to produce an improved closure adaptedto substantially isolate the dischargingyof ref;- use intothe chute at each opening from'all the others, so as to prevent back'drafts', odors, l5 dust, etc. from entering the building, yand also reducing lire hazards, .inl guarding against transmission of lire from one floor to another through the chute. A further 0bliect is to provide a' closureadapted when oper? ated to substantiallyclose `the chute passageway both above and below the floor level opening. Another object is to provide an improved closure that is simple, positive and durable, and which, when inoperative, per- 5 mits unhampered passage ofrefuse through the chute from above. It isalso an object to produce a chute construction includingV a closure wherein; there is no'eXtension or pro- `iection into the interior of the building, thus ebviating unsightly appearance as well as affording use ofthe full iioor space adjacent the chute opening. n The kinvention consists in certain features and-elements ofconstruction,.herein shown and described asindicated in the claims. 1 Y f In the drawings: l e Figurel is a longitudinal sectional view of a refuse chute embodying the present inven- 40 tion: the closure vapparatus being shown 1n position to aiiordaccess to the chute from the interior of the building. n

Figure 2 is a fragmentary transverseA sectional view takenat line 2 2 onFig, 1. l vFigure 3. is a view similarto Fig. 1, showing a modified construction. L Y y FigureV 4 is a transverse sectional view taken at line i-4 on Fig. 3.

e Figure 5 is a fragmentary viewof'a moditied closure operating mechanism.

ay liturtlier modified construction and Figure 7 1s a transverse section taken substantially as indicated at line YT-7 on Fig. 6.

- Figure 8 is a partly diagrammatic view of the nature of a vertical secti-on of a building having severaliioor levels andequipped with a chute embodying this invention .extending `Figure 6 is a longitudinal sectional view of lthatif desired, this chute could be apermai nentlyjwalledy or built-in structure of vthe building.A As shown, the chute is of steel plate construction, rendering it Ylire proof, and is' of Athree wall formation using the building-wall to complete it. Generally in chutes ofthis character provision is made for discharging into the chute at several places, and for this purpose suitable openings,'.13, are formed in the building wall 11, preferably in convenientrelation to the floor levels, as indicatedat 14.Y Mounted adj acentA eachwall opening is my improved closure apparatus comprising a pair of doors, 16 and 17, hingedly supported on parallel horizontal axes and mounted in vertically spaced relation` at the front and rear walls oi?4 the chute. These doors are preferably of plate and angle constructionY to render them light weight, and are mounted on transversely extending hinge shafts, 18v and 19, respectively.

The ends ofthe shafts 18 ofthe upper door 16 are journaled in bearings, 20secured to the side walls 21 of the opening 13 adjacent the top thereof a distance inwardly olf-the outer side of wall 11, so as to permit said door to swing downwardly into vertical position (as indicated in dotted lines) to substantially close said opening; in such positionthedoor 16 hangs at one side of the eii'ective vpassagewayof the chute. The ends of pivot shaft 19 of the lower door are'journaled in bearing brackets 22 secured to the chute side wall at a substantial distance `below the opening 13 and ata laterally` offset portion 230i the chute back wall.. Thus, when the lower door is permitted to assume the vertical down- Y wardly extending position (as indicated in j door. r l. e

The upper and lower doors are connected dotted lines) it too hangs to the side of the effective chute passageway. The bearing brackets 22 are preferably of the upwardly open socket type, as shown in Fig. 2, so as to facilitate the assembly or replacement of this for conjoint actuation, and are adapted to be Y*simultaneously swungto extend transversely Uof thechute, as shown inthe drawings, and

supported in such position. These doors are designed so that in such transverse position they substantially occupy the cross sectional area of the chute, substantially closing-V the j vchute opening both above and below the chute opening.; The interconnection of the doors consists-0f a pair of laterally spaced cables, 24, pi`votally' secured yat their yupperlendsr to the outer end of the door 16, and at' their Ylower ends to the top of the'lower door 17 adfjacentf the sides ofthe doors, so that said lugs, 26, yconnectedbya rod, 27, forming a convenient hand grip whereby said upper doormay be pushed upwardly about its pivot Vaxis transversely of Athe chute, and due to the cables 24 the lower door 17 issimultaneouslyY swung upwardlyv in'transverse 'positionV below the opening 13.. `A spring catch, 28, is secured i to the back wall of the chute, and is adapted to engage-said upper door 16 when itisswung upwardly, for-supporting said doors'inV such transverse position. Secured to said'catch is anl operating rod, A 29, lpositioned above fthe opening `and having its opposite endslidably vsupported in the reinforcing liner, 30, .of said opening 13; the extreme end of saidrod '29 extending'slightly beyond the liner'30 and adapted to bey engaged Vby the inner door 31 which serves'to complete. the closure'onthe insideofthewall 11. It will now be seen that wlien door 31 isclosed, the doors 16 'and 17 hangin vertical position as indicated in `dottedlines, and as soon, asdoor 31 is opened, spring `catch 28" permitted to assumeoperative position to engage and supportthef doors whenutlie upper kdoor is pushed upwardly; In suchposition, the upper side .of the lower door 17 acts `as a false bottom to receivethe refuse through the opening, 13 andV to discharge it into the chute when the inner door 31` is closed; the closing offsaid door31 engagesthe end, ofirod 29 thus'shifting thev catch 28 to permit'bot-h of said doors 16 and 17 to drop underv the'influenceof'gravity. .Y Y f In' thisarrangement the inner door 31 is practically closed before the` refuse actually is discharged. This'general construction is particularly -advantagec'us in that the interior of the building may be kept neat appearing without unsightly receiving hoppers proj ecting into the rooms or halls, while permitting the full use of the floor area adjacent each opening. In the event that refuse is discharged down the chute from above, while the doolsl and 17o a closure at a lower level are positioned across the chute, the top of the upper door 16 serves as a false bottom to Catch the; refuseA from above,1 which will be discharged iony down the chutel when the doors 16 and 17 at this particular level are shifted Y, tojrelease the refuse loaded in at this level.

Figs. 3 and 4 illustrate a modified construction-which"isla-'reinement with respect to the actuation of the cooperating doors 16 and 17. The construction andzconnection oi the doors is substantially the same as inFig. 1, except thatthe pivot shaft, 18, of the upper door 161is rigidl'y'connected for. rotation therewith by reason offthe'shaft being of squarey cross section; thfelendsl of the shaft are turned round and ournaled4 in Ybearings 35 secured tothewall 21 of the opening13.. One end of said shaft extends through the wall`21 into an opening 36VA formed in the wall 11, adjacent opening13. Rigidly secured to the project- 'ing endofsaidshaft is a lever arm, 38, which extends in theplaneof the upper door 16 and haspivotedtol its outer'end a link, 39, whose otherwend'iszpivoted to theend of operating lever-40jwhich'is iXedly pivoted at V41130 the wall 42 oithe'openinf,r 36.'I The outer end'of the level: 40 is formedwith aghandle, 43, for swinging' they lever about its pivot 41; thus swingingfthe upper door 16 upwardly to transverse position: which action simultaneously raisesvthe. lower door 17 across the chute.` The doors are supportediin such positionby reason ofthe pivotal connection of the link 39' and lever 40 being swung-to a position beyondthe plane'ofthe pivots 41 and pivot connection of'link 39 with arm 38; and the movement islimited against buckling by the handle 43 engaging the lower sill of opening 36, Y

An inside door 44 is provided to complete the closure of opening 36 from the interior of the building. Thus, the doors 1'6'and 17 may beoperated independently ofthe openlar advantage in that after the refuseis deposited onlower door 17, the door 31 may be closed andthe doors 16 and17'then operated to discharge the-refusefdownwardly in the ing or closing of door 31.; this is-of particuchute,.avoidingany possibility of back draft, i"

or refuse being blown back in the building through the main openingV '13.

Fig;` shows a modified construction Jfor operating, the doors 1 6 and 17 Rigidly secured on the end'ofsquare shaft-18a, extending into the opening 36', is a worm gear 46 operatively meshed with a worm 47 mounted on an operating shaft 48`journaled in bearings`49' secured to. the-wall 21. The end of the shaft 48 is formed with a suitable crankengaging portion 50 which extends through a fix-ed escutcheon plate 51 forming the clos ure of the opening 36 on the inside .of the build-ing. lt `will be apparent that with this form of operating mechanism, the doors 16 and 1? may beV actuatedV and will beheld in any position by reason of the locking effect of the pitch of the worm and gear. Figures 6 and 7 represent a further modification which is, in general, similar to the construction shown in Figs. 3 and 4. In this arrangement the square hinge shaft, 18h, of the upper door, 16, is reduced at its ends and journaled in bearings, v35, securedy to the walls, 2l; an end of said shaft extending through the wall, 21, into the oaening, 36,

adjacent the main opening, 13. tigidly secured to the projecting end of said shaft is a sheave, 55, to which is anchoredthe end of the operating chain, 56, which is trained over a pair of vertically spaced idlersheaves, 57

and 58, and thence downwardly and havingl its other end fastened to a slieave, 59, fixed on the projectingA end of the square hinge shaft, 19h, of the lower door, 17; said shaft,

19", having its ends vreduced and 'journaled in bearings, 60 secured to theicasing,l0. The sheaves, 5.7 and 58, are freely journaled on stud brackets, 6l and 62, respectively, se-

cared to t ie outside of casing, 10. Thechain intermediate sheaves, 57 and 58, is of excess length and is extended forwardly in doubled relation and connected to a turnbuckle, 63,k which in turn is pivotally connected to one end of a link, 64, the other end of which link is pivoted at 65, to a bell crank, 66, which is mounted on a fixed pivot, 67, on the wall, 21. The bell cranlr is formed with a long arm 66?', which serves as a convenient hand lever for operating the doors.

rhus, in pulling the lever, 66a, downwardly from the position indicated at A aboutits pivot, 67, the chain intermediate the sheaves, 57 and 58, is drawn toward the building, causing the chain wrapped onv the sheaves, and 5), to be paid out, rotating the shafts, 18b and 19", for swinging the doors, 16 and 1 7, upwardly to extend transversely of the ci. 10, both above and below the main opening, 13. it will be seen that in this position of the doors the lever, 66a, is swung down against the wall, 11, withtlie pivot, 65,-position-ed below the fixed pivot, 67, thus acting to loc t the mechanism for maintainingV the doors in chute closing position. By swinging lever, 66, upwardly, moving its pivot, 65, above pivot, 67, Jthe doors, 16 and 1.7, are per miti-ed t-o fall by gravity, and in so doing wrap the chain, 56, a portion of a turn about mally closes said opening, said doors being one side of the hingedlymounted in vertically spaced relation adjacent the opening and adapted tio be swung transversely of the chute for substantially closing the passageway thereof both above and below said opening, and means for supporting said doors in such position. 2.y A 'chute having' a lateral opening, a pair of co-operating doors hingedly mounted on vertically spaced `aXes,one of said vdoors normally closing the opening, means interconnecting the doors for conjoint actuation, said doors being adapted to be swung about their axes, transversely of the chute for substantially closing the passageway thereof both above and below said opening respectively, and means for maintaining said doors in such position.

3. In the combination defined in claimv 2, means operatively. connected to one of' the doors for moving both of them into and out of their transverse positions. E Y

ifi-In thecombination defined in claim 2, each of said doors beingsuppoited to hang normally in a substantially vertical plane effective passageway of the chute. Y n y t 5, A chute having a lateral opening, an upper door hingedly mounted adjacentrthe top of the opening, and normally closingthe saine, and movable to extend transversely of the chute to substantially close the passage*- way above said opening, a lower door hingedlly ymounted below 'said opening and movable/transversely of the chuteforA substantially closing the passageway below the opening, and means for supporting said doorsin such chute-closing position.

, 6. A chutel having a lateral opening, an upper door hingedly mounted adjacent the top of the opening and adapted to normally close the saine, a lower door hingedly mounted below said opening, and means for swingof the chute for substantially closing the passagewayabove and below 'said opening respectively.

7. In the combination defined in claim A6, said means being also adapted to maintain said doors inchute-closing position. l

8. Inthe'combination defined in claim'6, said lower door being hingedly' mounted in said Vchute at the side opposite said opening. Y 9. A chute khaving a lateral opening, an upper door hingedly mounted adjacent the top of the opening and normally closingjthe saine, a lower door hingedly mcuntedbelow the opening at the side ofthe chute opposite said opening, means connecting said doors for conjoint actuatiomand means operably connected vto `the upper door for swinging both saiddoors transversely of the chute to ing said doors about their axes transversely,

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substantially .close the passageway thereof both above and below said opening,` said nleans maintaining said doors automatically such position. f 10. `In combination with a chute having a lateral opening, two vertically spaceddoors, operating 'means and separate `connections from said means to the respective doors for shifting said doors simultaneously to extendv connecting said doors for conjoint actuation,

saiddoors being adapted to be swung upwardly about tlieirhinge axes to positions substantially closing the passageway ot the chute both above andbelow said registered openings, detent' means for maintaining said doors in suchposition, a. doorlmounted on the inner side of the wall for closing the opening,

andlmeans responsive to the closing of said last mentioned door-for releasing said detent means, permitting said connected returnito normal position.

` 12. In combination-wither wall of a building,'an upwardly extending chute adjacent the wall, said chute and wall having a plurality-of vertically spaced openings toafford accesstothe chute fromthe inner side of the wall, two vertically spaced doors adjacent each openingmeans interconnecting each set of doors vfor conjoint actuation and means for'positioning each set of doors transversely of the chute for substantially closing the passageway thereof both above and below the opening.

y13. A chute having a lateral opening, two movable doors and means for shifting said doors to extend transve 1sely of the Vchute for substantially closing the passageway thereof bothaboveand below said lateral opening.

.14sk A chute having a lateral opening', two vertically spaced doors, means interconnect- Ying said doors for conjoint actuation and means for placing said doors transversely of tlf@ chute for closing-the passageway thereof both-above and below said lateral opening.

15.. A chute 4having a lateral opening, twoY vertically spaced/doors, means interconnectingsaid doors for conjoint actuation and means operatively connected to one of the doors for moving both of them to extend ltransversely of the chute for substantially closing the passageway thereof both above and below said lateral opening.

16. In combination with a wall of a builddoors to Vof the chute for substantially closing the passageway thereof both above andA below the lateral opening and an inner door for closing said opening.

17. In combination with a wall of a buildi ing said opening in the wall from the op` positeside thereof independently of said swinging door. and means actuated by said second door when it is moved to closed position for releasing said detent means and permitting the rst mentioned door to swing to closed position. Y v

' SAMUEL OLSON.

ISAK ANDREW OLSEN.

ing, a chute disposed adjacent the wall, saidv Y 'walland chute having a lateral opening con-l necting'the interior ofthe building with the chuteatwo interconnected movable doors,

means-for positioning said doors transversely 

